code: def __getitem__(self, item):
      return getattr(self, item)
  
file_path: xformers/xformers/components/multi_head_dispatch.py
imports: import logging
  from dataclasses import asdict, dataclass
  from typing import Optional, Tuple
  import torch
  import torch.nn
  from torch.nn.init import constant_
  from xformers.components.attention import Attention
  from xformers.components.input_projection import InputProjection, InputProjectionConfig
  from xformers.components.positional_embedding import RotaryEmbedding
label_desc: Use image node_id 1 for calling the MultiHeadDispatchConfig obj's underlying member method code with example usage: obj.__getitem__(item) and returns: getattr